OK similar question as before: I think I've spotted a bug in ifconfig but net-tools does not seem to be on the list of supported apps for fedora in Bugzilla... Basically a sub interface of eth0 (eth0:0) gets the counters from the unrelated eth1 interface despite being a different hardware device: eth0:0 Link encap:Ethernet HWaddr 08:00:2B:C5:0D:7A inet addr:192.168.100.2 Bcast:192.168.100.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1408372 errors:0 dropped:0 overruns:0 frame:0 TX packets:3783306 errors:0 dropped:0 overruns:0 carrier:0 collisions:67186 txqueuelen:1000 RX bytes:151553989 (144.5 Mb) TX bytes:1326172537 (1264.7 Mb) Interrupt:3 Base address:0x2c00 eth1 Link encap:Ethernet HWaddr 00:00:F8:22:7C:65 inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1408372 errors:0 dropped:0 overruns:0 frame:0 TX packets:3783306 errors:0 dropped:0 overruns:0 carrier:0 collisions:67186 txqueuelen:1000 RX bytes:151553989 (144.5 Mb) TX bytes:1326172537 (1264.7 Mb) Interrupt:3 Base address:0x4800